Ford SUPER DUTY 2024 Owner's Manual page 214

Your vehicle operates on regular unleaded
gasoline with a minimum pump (R+M)/2
octane rating of 87 or regular unleaded
gasoline blended with a maximum of 85%
ethanol (E85).
Some fuel stations, particularly those in
high altitude areas, offer fuels posted as
regular unleaded gasoline with an octane
rating below 87. The use of these fuels
could result in engine damage that will not
be covered by the vehicle Warranty.
For best overall vehicle and engine
performance, premium fuel with an octane
rating of 91 or higher is recommended. The
performance gained by using premium fuel
is most noticeable in hot weather as well
as other conditions, for example when
towing a trailer. See Towing a Trailer
(page 362).
Do not be concerned if the engine
sometimes knocks lightly. However, if the
engine knocks heavily while using fuel with
the recommended octane rating, contact
an authorized dealer to prevent any engine
damage.
We recommend Top Tier detergent
gasolines, where available to help minimize
engine deposits and maintain optimal
vehicle and engine performance.
For additional information, visit
www.toptiergas.com.
Note: Use of any fuel for which the vehicle
was not designed can impair the emission
control system, cause loss of vehicle
performance, and cause damage to the
engine which may not be covered by the
vehicle Warranty.
Do not use:
• Diesel fuel.
• Fuels containing kerosene or paraffin.
• Fuels containing more than 85%
ethanol or E100 fuel.
• Fuels containing methanol.
2024 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202307, DOM
Fuel and Refueling
•
•
•
The use of fuels with metallic compounds
such as methylcyclopentadienyl
manganese tricarbonyl, which is a
manganese-based fuel additive, will impair
engine performance and affect the
emission control system.
SELECTING THE CORRECT FUEL -
7.3L, GASOLINE
E161513
Your vehicle operates on regular unleaded
gasoline with a minimum pump (R+M)/2
octane rating of 87.
Some fuel stations, particularly those in
high altitude areas, offer fuels posted as
regular unleaded gasoline with an octane
rating below 87. The use of these fuels
could result in engine damage that will not
be covered by the vehicle Warranty.
For best overall vehicle and engine
performance, premium fuel with an octane
rating of 91 or higher is recommended. The
performance gained by using premium fuel
is most noticeable in hot weather as well
as other conditions, for example when
towing a trailer. See Towing a Trailer
(page 362).
210
Fuels containing metallic-based
additives, including manganese-based
compounds.
Fuels containing the octane booster
additive, methylcyclopentadienyl
manganese tricarbonyl (MMT).
Leaded fuel, using leaded fuel is
prohibited by law.